2018779900

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{3889}}^1$

素因数の和:4111

約数の個数: 72

約数和(自身を含む): 4558302000

約数和(自身を除く): 2539522100

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 179, 290, 358, 580, 716, 725, 895, 1450, 1790, 2900, 3580, 3889, 4475, 5191, 7778, 8950, 10382, 15556, 17900, 19445, 20764, 25955, 38890, 51910, 77780, 97225, 103820, 112781, 129775, 194450, 225562, 259550, 388900, 451124, 519100, 563905, 696131, 1127810, 1392262, 2255620, 2784524, 2819525, 3480655, 5639050, 6961310, 11278100, 13922620, 17403275, 20187799, 34806550, 40375598, 69613100, 80751196, 100938995, 201877990, 403755980, 504694975, 1009389950, 2018779900]

約数ペア:

[(1, 2018779900), (2, 1009389950), (4, 504694975), (5, 403755980), (10, 201877990), (20, 100938995), (25, 80751196), (29, 69613100), (50, 40375598), (58, 34806550), (100, 20187799), (116, 17403275), (145, 13922620), (179, 11278100), (290, 6961310), (358, 5639050), (580, 3480655), (716, 2819525), (725, 2784524), (895, 2255620), (1450, 1392262), (1790, 1127810), (2900, 696131), (3580, 563905), (3889, 519100), (4475, 451124), (5191, 388900), (7778, 259550), (8950, 225562), (10382, 194450), (15556, 129775), (17900, 112781), (19445, 103820), (20764, 97225), (25955, 77780), (38890, 51910)]